Manual Event (Session ID,DateTime,Event) = uu5sdq20kk1a8c0nbulu493sj1 20240504202455 /communities/hi-friend-as-it-is-generally-costly-to-collect-survey-data-of-patients-could-you-give-me-a-clue-about-how-to-calculate-the-ideal-number-of-participants/

Hi, friend! As it is generally costly to collect survey data of patients, could you give me a clue about how to calculate the ideal number of participants?

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Discussion thread: Medical Social Services

Lainey Fong

11 August 2022

Hi, friend! As it is generally costly to collect survey data of patients, could you give me a clue about how to calculate the ideal number of participants?

Hi, friend! As it is generally costly to collect survey data of patients, could you give me a clue about how to calculate the ideal number of participants?

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Grace Wong

11 August 2022

Cheers.

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Lainey Fong

11 August 2022

Ok, I see. Cheers.

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Grace Wong

11 August 2022

For most survey-based outcomes, evaluations typically need data from 20 to 100 patients per practice to be confident that they can detect a meaningful effect. Collecting survey data from more patients might increase the precision of estimates of a practice’s average outcome for its own patients, but it will only slightly improve the precision of the estimated effect for the intervention as a whole (that is, increase your ability to detect a small effect).

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